Any person working outdoors is at risk of exposure to poisonous plants and biting insects. Although most allergic reactions cause little more than redness and itching, in some rare cases these reactions can be quite severe. Therefore, it is best to be able to identify these plants and insects to prevent an exposure and know the first aid in case you come in contact with them. During this class we review plants such as poison ivy, poison sumac, and wild parsnip and hazardous insects such as bees, wasps, mosquitos, spiders, and ticks.